Telautograph.



R. W. ARMSTRONG. TBLAUTOGRAPH.

I APPLICATION FILED NOViI, 1906.

Patented Dee. 13, '11910.

4 BHEETS- SHEET l.

'gli

11. w. ARMSTRGNG. TELAUTOGBAPH.

APIQLIOAHOH FILED FOY. 1G. 190B.

Patented De@ 13,1910.

4 sisma-s315111 2.-

wenr.

B.. W. ARMSTRONG.

TELAUTOGBPH.

.urmouxos funn 11011.16. 190s.

Patented Dec. 13, 1910.

4 SHEETS-SHEET 4.

E/f'w @17j-Mi@ la` ,ent invention; with the tracer of the trans? UNITED sTaTns PATENT onirico.

RALPH W. ARMSTRONG, OF NEW YORK, N. Y., ASSIGNOB T0 THE GRAY NATIONAI.

TELAUTOGRAPH COMPANYTOF NEW YORK, N. Y., A CORPORATION OF VIRGINIA.

TELAUTOGRAPH.

Specification of Letters Patent. Patented Dec. 13, 1310.

"lication led November 16, 1906. Seria! No. 343,596-

To all whom. 'it may concern:

Be itknown that I, Hanru lV. ARM-- s'rnoxo, a citizen of the United States, re-- siding at New York city, county of New York, and State ot New York, have invented certain new and useful Improvements in Telautographs.v fully described 'and represented in the following specification and the accompanying drawings, forming a part of the same.

This invention relates to improvements in lelautographic apparatus in which the movements ot' the receiving penA in u..ison\vith the transmitting tracer azeeiccted by variations in the strength of the-currents sent through the line from the transmitting instrument to the receiving instrument, such variations in current strength in turn eti'ected by and corresponding to the movements of the transmitting tracer. t

The present invention has reference particularly to nia-:ter switch mechanism controlling `the electrical connection of the transmitting and receiving instruments ofA one station with the receiving and transmitting instruments, respectively, of another station; it being one object of the present linvention to provide a master switch mechanism which may be operated by the same l and J,that is used in ti'riting, instead of by' lie/other hand, as in the case` of master switch mechanism heretofore provided.

The advantages of the master switch provided hy the present invention are increased ease and speed of operation, and possibility of use of the telautograph by )ersons who ordinarily have but one hand ree, such as, telephone operators, in particular. Other advantages are that a transmitter equipped with such a switch may he as readily used by left handed persons as by right handed persons, and is also usable by persons having but one; hand. y

in the accompanying draings-Figure l is a diagrammatic view of a te autographic station provided with amaster switch and lock magnet therefor, embodying the presmitter shown as transmitting a message to a distant station, land the en of the receiver as ai. unison or in normal) position. Fig. 2 ign view-of another station with the pen of the receiver thereof shown as operating to record a message, and the tracer of the transmitter as at unison or in normal position. Fig. 3 is a plan View of the transmitter Aas it is shown 1n Fig. 1, 2'. e., with its tracer out of normal or unison position, and inthe act of transmittin r a message. Fig. 4. is a vertical section of t 1e same on the line 60 4- 4 of Fig. 3. Fig. 5 is a horizontal section, illustrating the master switch and the lower set of contacts with which it engages when the station is set for transmitting. Fig. 6 is a vertical section through the same 65 on the line 6 6 of Fig. 5. Fig. 7 is an end view of the master switch looking toward the left of Fig. 5. Fig. 8 is a vertical section on the line. 8 8 of Fig. 6. Fig. 9 is a View similar to'Fig. 6, showing some of the 70 parts in a different position. F'g. 10 is an end view, partly in section, of the paper shifting mecham'sm at the transmitter, the same being shown in normal position, ready to shift the oper; and Fig. 11' is a similar 75 View, with t e parts shown 'in the positions they occupy on the completion of a shifting operatlon. A

The circuits and devices controlled thereby, illustrated in Figs. l and 2, are, as vfar S0 'as they go, and except, of course as to the master switch, the paper shifting mechamsm at the transmitter, and the lock inag-A net for the master switch, substantially u reproduction of those illustrated inthe application of George S. Tiffany, tiled February/ 5, 1906, Serial Number 299,413, certain of the circuits in which are not rc reduced herebecause it is unnecessary to (li) so. So far as the circuits and devices controlled thereby reproduced here are concerned, they need only e described suiciently to make clear the functions and method of operation of the switch and lock ma et of the present invention, and'such briendeso'ription will now be 95A given.

For convenience of lldescription, Fig. 1 will be assumed to represent; the home station, and Fig. 2 a distant station, and,

as the apparatus is identical at. the several stations, onlyv one transmitter and one receiver need,- there fore, be described. Forfr.'4 the purposes of such description, the trans-j mitter of Fig; land the receiver. of

ggg 978,128

triil be selected as they are shown as coul uci-teil in the drawings. ln this description.

the san-.e reference niuuerals will be applied i to corresponding parts in the tivo figures.

but, for convenience in lfollowing the ciicuits, the reference numerals used in Fig.

will be followed `by the reference charac- The. transmitter, Fig. 1, is equipped with the usual tracer 1, pivotally mounted in the converging ends of` pencil arms 2, the opposite cnils of which are hinged to bell craiik levers 3 4, .respectively journaled in posts from the base oithe transmitter f aine and provided with contact. rollers bearing against rheostats 5, 6, respectively, through v hich currents' of varying strength are .shiintcd from a battery T into the main line circuits le: ,i,'-,1:ig to the receiver of a distant siation,-l"ig. 2, for example. It. may be here. stated that; when the station is trans` shitting, the battery is the line battery for the main line circuits, but, when the station is receiving, said battery becomes a local batterv for certain local circuits in the receiver, air also..control s the lock magnet for the rnaster switch, as will prcsently'appear.

The connection ot' thehomc'station with a distant station for transmitting or receiving, aswell as thc connection-of the rheostats 5, G, with battery 7. is controlled by the master switch constituting part of the present' invention, and, in order that the connections of the two stations may be understood, in advance. of a. tletailed'description ot suchL master switch, it; may be .stated here that this master switch is provided with .thrce spring contact plates 8, 9, 10, suitably insulated from caen other and which intheir lowerinost. position, 2', e., when the station is transmitting, engage three pairs of stationary contacts 11 and-1'2, 13 and 14, 15 and 3G, respectively (see Fig. 1), 'while the plates S, t), in their uppermost. position, 5.1i., when the station is receiving, engage two pairs of contactsl' :intl 18, if) and' 2G. respectively. (see 2) contact plate 10, of course. being then out of engagement. with contacts 15, is.

lhen the contact plates. 8, `9, 10 are in their iowerniost positions, the engagement or plate 10 with contacts 15, 1G closes the (':reuit or circuits from battery 7 through rlieostats 5, 6; The circuit thus closeiiconts, for rheostat 5, of Wire :21 from positiie pole of battery 7, wire 22, contact 15, plate 10.' contact'. 1G anti Wires 23, 24, 25, 26, to the smaller cnil of the rheostat 5, and wires 2T, 2S, Q9, and S0 from the larger cnil rheostat, to the negative pote of bat- K which is grounded, as shoe-itat 31:

e. he circuit.,` for rlieostai'z 6, consists ot 1, Q2, contact ltplate 10, contact 16.

2li and 32 to the smaller end of rheotat (i. :intl wires 33 29 ami $30 from 65 i the larger cnil of the rlicostat. to the negriine pole of the battery. lt will he uiulerstood that with these circuits thus closeil currents will be sluintci'l from batterv T through rlieostats 5, t3, into the inaiu liuc circuits leading to the receiver of the distantstation. :intl also that such currents will var v in strength accortlimg1r to the positions, lengthwise of rheostats 5, t?, assumed by the Y ccntact rollci-sfon hell cranks 3, 4. the movcnie-nts of which are in turn controlled and elt'rcicil by tracer 1. TW ith the muster switch plates 8, 9, 10 in their lowermost. po sitioo, also. the engagement ot' contact plates i. with stationary contacts 11, IZand 13. 14. respectively, closes the two '(lct't aml right) niain lint,` circuits fromthe transmittcr to 'the distant receiver, thus: The right main line circuit consists (Fig. 1) of the loiver arm of bril .i'auli 4. wirr` 34, one 8:3 secondary winding, T2, of an induction coil (which has two secondary windings, as shown), wire 3G, contact. 13, contact plate 9, contact 14, wire 3T, Wire 38. and (Fig. 2, where the contact. plates 8a, 5) are tile-.n in 'i0 their uppermost positions, that station being receiving wire 383, 39', contact Q0', plate.

9*. Contact 19a, wire 40, right hund certi? calli? movable coil 41, and wires 42, 43", to

groiiinti, asshoivn, 'at'. 44A. The .left main a5 line circuit consists (Fig. 1) of the lower arm oi bell crank lever 3, wire 45, the other secmdanv winding 46 of the induction coil ab the transmitter, wire 47, contact-v 11, plate S, Contact 12, wires 48,' 49, and (Fig. 2) 100 wheat?, 50, contact 18, plate 8, Contact 1T", wire 5 1", a relay 52', ulre 53, left hanil vertically niovublre coil 51, and wires 55.

'and 3 6 to ground, at 44, When the two niain line c1rcuits-are thus closed, the ti-ans- 10E i'lnitter ot Figfl is on and its receiver is with relation to the distant station of Fig. 'hile in Fig. 2 this condition is reversed. the master switch thereof beingvin its uppermost position with contact platesl l- S, 93 m engagement with .contacts 1T, 135 and lfr, 5.103, so that the receiver of Fig. 2 on and the transmitter of that ligure is "of" with relation to the station of fig. l. The closing of left main line circuit. just described, causes' relay 521. to attract its armatore 5G and bring it. against a contact 57 an'l hus close certain local' circuits at` the receiver (Fig. 2) -rom battery Ta, which.

:is before stuteil. becomes a local butterv i'oi 120 these receiver circuits when the stallion is Retiring Sonie of these local Circuits are shown m the' present case nml will he briefly Jescriliecl. Continuing tlm decription with especial reference to the receiver of Fig. i', because the station of that heure is shovrn as receiving one of these local circuit: L: for energizing magnet 58 pra viding the field for coils 4l, 54, and consists of wire 21 from the positive pole of battery 7. ivire 59e. a loch magnet (301 (the functions of which will be hereinafter described), wires Gl. 62a. magnet 5W. iviics 63. G43. armature 56 ot' relay contact 5T. and wires 65", 30a to the negative pole of battery Ta. A branch ot thisarircuit. consisting of wire (36 connected with wire til,

and wire 67"- connected with wire tit, passes 'through paper shifting magnet GS at the.

receiver. so that immediately ou the closing of left inain line circuit and consequent closing of the local .circuits frourbattery Ta by the armature 5G, said paper shifting inagnet is energized and the paper atthe receiver, therefore, shifted. -mother branch of this local circuit` consisting of wires 69a, connected with wires 6T". and wires 70.. 71*

connected with a pen lifter magnet Tzlvand field magnet 58, controls the raisingr and lowering of the receiving pen. this circuit being controlled by circuit closing :neans in- .elosed in a receptacle 73a secured on a diaphragm 74 mounted on relay 5:2", asin the aforesaid 'litiany application.

The parts thus far referred to are so fully described in the aforesaid application of George S. Tiiany, that they need not be further described here, as, of themselves they constitute no part of the present invention.

Referring now to the other figures of the drawings, the master switch, the lock magi net, therefor, and the paper shifting mecha'- nism at the transmitter, -will now he described. Y-

The spring Contact plates 8, 9, 10 are all secured to a swiiigin plate or yoke 75, from which they are suita l insulated and which is provided with ears 6 through which it is p ivoted in lugs 7T risin from the base of the transmitter frame low the writing platen 78; yoke 75 being thus adapted to swing vertieally so as to bring its contact plates into engagement with the lower set of contacts 11, l2, etc., or the upper set of contacts 1 7, 18, etc. The plate 75 has a forward extension 79, which is, in turn, provided with a downward projection 8O with which is connected one end of a coil spring Sl, vthe opposite end of which is connected with the free end of a dat, spring 82 secured to a block 83 on the base of the 'transmitter frame.V The projection S0, V spring 81 and spring 82 are so disposed relatively to each other, am?L to the pivots of yoke T5, that, when fiat sprinfr 82 is in its normal or upper position (Fig. 6), it will be above the pivots of yoke 75, so that it and spring S1 will hold yoke witl its contact plates 8, 9, 10 .in their uppermost positions; While when the free end of spring 82 is depressed, it will take un a position below the pivots of yoke 75 and, therefore, through spring 81, rock 65 spring S2 passes above or below the yolies pivot, be nioved abruptly to its uppermost or lovferijiiost position, respectively; the master switch of the present invention be` ing thus of the snap switch type.

The means for manually operating the master switch consists of a plug 85,the upper end of which projects upwardly through an opening provided in a table 5G Hush with platen 78 and in a plate 87 beneath said table, the lower end of this VV)lug 85 being secured to the. free end of at spring 82. Plug is retained in its uppermost position by fiat spring S2 (see Fig.' (i), and in its loirermost position by plate 87,'which is designed to engage a notch 88 in the side of the plug (see Fig, 9), The upper end of plug 85 is holloived out slightly, so that the operator, when he desires to shift thi switch down, may oyengaging the pointrof the tracer 1 with the upper end of plug 85 move it down and then rock it forward slightly so that plate ST will'engage notch 88 and thus lock the plug, and, therefore, the switch, in their lowermost positions; while `when he wishes to shift the switch upwarell}Y lie may do so by engaging the oint of the tracer with the upper end o the plug andtlien rocking the latter so as to disengage its notch 88 from plate. 87, when fiatsprihg 82 will move plug 85 and the switch uiivartfily. The operation of this switch, t erefore, is or may be performed by the operator with the hand he uses in writing instead of, as in prior switches, by the other hand. The movement of the switch and contact plates 8, 9. 10 upward, as before e); plained, `conpects the., .receiver of the station with a'dist'anf tiansinitt'r.1tliis being the normal position of the sivitciisn eacl. 'station when the station is not in ii while the movement of the switch downward connects the transmitter of a station .vith a distant. receiver. To prevent movenient of the switch of a station fromrcceiving position while a distant station is transmitting messages to it, lock magnet 60, before referred, to` is provided. This magnet is located beneath the hase. of the trans,

vent. depression o said spring and down-l 25 muy be.

7 of Fig. 2- beeaiise that siiitionns shownwird inoreinent of the master switch and its Y grip the prigir'r .strip S6 between them finti en tiiziet-v Plates S, i from their receivture H!) octipies the' posit-inn in whieh it is .shown iii igs l :ind 8. As soon, however, :is 'iii'ient on left niiiin liiiefroin :i distzizit transmitter, niiignet GO is energized and tion relatively to' tint, spring S2 in= which 1G iii'iiiiitiii'e bil is shown in Fig. 2, :imi :irmatiii'e Si) is shown by dotted lines in Fig. 8, 2

5 wire .find Wire 9S eoniieeted with Wire 2S current eens-es on .left` mitin line. when it resumes-the position Shown in Figs] zind h v fnl?, lines iii Fig. 8.

:mit it i'cnmins in this locking position iintii inzistei' s\\'itch is, therefore, prevented until the operator of the distant triinsniittei'ilias shifted the iniistev .switch of the hitter from "trzinsinitt-ing"7 to receiving er noi-nml pnsition,\\lie.ii the right. and left line vii-cuits of the ief'eiver are, of Course, opened. Energizntion of the toi-k niiignet is eictefl by the closing of the ioi'il ieeeii'ereireiiit or eirctiits from hotter; i oi' T, :is the ense Taking for convenience. 'biittery :is receiving," the circuit for so energizingrv the lock magnet G()a consists of wires 22, 59%,' from positive pole of buttery 7,

313 magnet GO., wires (31, 62, field .iiinjgiiet 5S,

wire G3, tif, ariniitiiie 561, eontitct 57a, und

vwires 35", 30, to the iiegiit'flve'pole of hilt- Y ivi-y. 6;. which: iis the 35 irheii the transmitter of Fig. 1 is connected Fig. 2), :ittraets its armature 5tlg" :intl engages it with Contact i This` Circuit. is eoiitiolleil hy rehiy ieft timin hiie 1s closed 5T, thus: rinsing the circuit.. und whichsis the ieft mimi line. is opened (when the trans- 40 iiiitter of Fig. l is lisionneoieti from the l rereii'er of Fig, '2) releases its niniiitnre 5G" :ind 'thus opens-this circ-nit; ni'iniittiie 89l the locking position shown in Fig. 2 to the position in which :ii'iiintiii'e Si) is shown in Fig. l.

The. paper .shifting iiieehsimsm tit thetiiinsmitter insists (Figs. 1, 10 :ind 11) of :i magnet, 90 mounted in brackets 91 Se: ctiied to the transmitter biise. ii swinging 5U ainiittiire' 92 piyotrilly `inoiintetl h v nrriis 93 in hincl-:etSUL :intl zi haii 9-1 pivotiilly mount- .eil hy nrms 95 in zii-ins 93 so :is to nioi'e with anti :Liso sii-ing relatively to the armature 92.

l he piipfeii strip UG :it the trains-initier led. from writing pinten 78, beh-reen armature i 99. :1rd b: iil-l, which' iioi'iniiliy (i e.. While the Station is Set for receiving with the :iiiistei .swift-li in the position shonn in Fig. 2l oei-nw' the insiton iii' which they :ire

6U shown in Fig. l0, in which position the ningiii-t 90 is of muys-e ilenei'gized, when ningnei Si() is energized. ii :iztiarts its' :iriiiiitni'e 5); :intl the hitter :mit hin' 0i :ire inoveil to the posit ion .shown in Fig. l l.l unil, in sirnmving',

ner. downwardly to the position shown Fig. 1 7i' Q oi' to transmitting pofition. sind Contact.

its iirinittiii'e Si) is roi'lted to the locking posicircuit 21, QQ, 15, 10 1G, etc., to rlieostats, :i brunch circuit is elo.

Movement of the t feed it foiii'iii'il iii' iiiiiiy from writing phiteii ingr position (Fig- 7). Noriiizilly. the :mriii' 78. Magnet D0 ,s ihiis energized to shift the paper, from lizifti-fy 7, in the following man Vheii thi` master switch is moved plate'lO, as lit-fore deserihei tlius doses the it through met;

connected with net 90, consisting of -wire Q7 16, magnet Si() is tienergiizeii and releases its armature 92, which. with ..-r tti, then issiimes the position in wlmi: i; is shown in Fig. 10. It- WiH he obvious that by repeated operations of the muster ssfziteh, the oper mor, may shift the paper strip 9G to any eii- 99 teiit desired, :ind it will also be obvious 'that siieli shifting of the paper is or may be done by iii/ni with the same hiiiid iised in ijvrtinir by the engage. ient of the, tracer point wit ',fii'ug'S-. lt will :ilse be understood digit. sis S5 tlie paper is thus shifted :it the transmitter, the paper at the receiver of the, distant, stef tion-wi1l s iiso be shifted hy the tri-ing of the Dit reeeifei' :intl tiiiiisiiiitter,v i"speetivelj,, i" 'i distant station, of :t soup-switch, :ione position of which the ieeeiir-r is "izii sind the tiiinsiiiittei' eil" *with ieri-peet to the distant -stiitioii und in iiiiotheiposiii'n vt iii whit-'ri tliisieonaiiiion is reversed. manu ltr eoittioileil spring nieehiriiisiii for morini; ihs switt-h with :i s ;ip notion to these two posi tions. :intl :i rinvii operziteii i iitiirimi.: v

with the sn'itfh for retaining i. iii the hitter il; position. suhstniitielly :isy vwritieii.

2. 'liie coiiil-iii'it'ion I'i the trunsniiier :nifl i'eteiiei ot' ai tel-:iiieet'iiit ze itiitirin :mii 1 .4 UVA. {.v.. n intl., Mimet conittiioiiri ending, itin uns ii. L rem-ire:- iiiiil transmitter. i'rsneet'i'eli': 1,220

...ein

S0 as to moi e to these positions. and mami` ally operati-ii means- Jfor so moving,r said spring. suhstant iallv as described.

3. The combination with the transmitter aud rereiver of :i telautograpliie station and l circuit '.-onuections leading from them to tiie receiver and transmitter. respectively. of a distant. station. of a pivotallv supported snap-switch, iii one position of which the receiver is "on" and the transmitter "oli'" with r-lation to the distant station. aud in another position of which this condition is reversed. a suiiabl)v supported actuating spring connected with the switch and movable to opposite sides of its pivotal support so as to move it to these positions` manually operated means for so moving` said spring, and a lock operated simultaneousl)v with the Switch for retainingr it in its second aliovenamed position. substautiallji' as described.

4. The combination with the transmit/ter and reeeiier ol" a telautographic station and circuit connections leading from then to the receiver and transmitter. respective y, of a distant station. ot a pivotally Supported suap-switeli. in one position of .vhich the receiver is "ou and the transmitter off 'with relation to tiie distant station, and in another position of which this condition is reversed. an actuating' spring connected with the switch and movable to opposite sides of its pivotal support so as to move it; to these positions, a spring support .connected with said actuatingl spring. and a manually operated plug connected with said spring stipport and adapted to move itfrom normal position so as to effect such movement of the actuating spring, substantially as described.

The combination with the transmitter and receiver of a telautog'raphic station and circuit connections leading from them to the receiver and transmitter. respectively. of a distant station, of a pivotally supported snap-switch. in oueposition of which the receiver is "on"- and the transmitter ofi with relation to the distant station. and in another position of which this condition is reversed. an actuatin spring connected with the switch and mova le to opposite sides of its pivotal support so as to move. it to these positions. a spring support connected with said actuating spring, a manually operated plug connected with said spring support and adapted to move it from/normal position sti as to eti'ecr such movement of thc actuatinglr sorinp'. and a loi-k operated simulraneouslv with the switch for retaining it in its second above-named position, substantiallvv as described.

6. The combination "with the transmitter and receiver of a tclautographic station and circuit connections leading from them to the receiver -and transmitter,

respectively, ,of a dieant station, 'it

a manually controlled mitter ott" with respect to the distant', station. and in another position of which this condition is reversed, and a loch' magnet i electrically controlled from theI transmitter 7G tot' the distant station and provided with ymeans for preventing movement. of -saiil i switch from its tirst-naineil position while current is on line to the station from the distant. tiansniitter, substantially as described.

7. The combination with the transmitter and receiver of a telautographic station and circuit connections leading from, them to the receiver and transmitter, respectively. of a distant station, of a manually controlled spring-actuated snap-switch, in one position of which the receiver is on and the transmitter ott7 with respect to the distant station, and in another position of which this condition is reversed, a lock magnet electrically controlled from the transmitter of the distant station and provided with means for preventing movement of said switch from l its first-named position while current ison line to the station from the distant. transmitter, and a lock operated simultaneously position, substantially as deand receiver ofa teianto circuit connections lead' 'receiver and ti'ansniitt"r,- `v of a distant station, of aV pivotally supported 100 snap-switch` in one positionv of `which the receiver' is on17 and the transmitter off l with relation to the distant station` and in another position of which this condition is reversed, a suitably supported actuating spring connected with the switch and movf able to opposite sides of itsI pivotal support so as to move it to these positions, manually .operated means for so moving said spring, and a lock magnet electrically controlled from the transmitter of thc distant station and provided with means for preventing movementI of said switch from its f`irst named position while current; is on line to r g them to the substantially as described. f). The combination with the transmitter and receiver of i telautographic station and Vcircuit connections leading lfrom theui .to

l tli receiver and transmitter, respectively, of i a distant station, of a pivotally supported 'snap-switch, in one position of which the i receiver is on and the transmitter ol" with relation to the distant station, and i n A another position of which this condition is" reversed, a suitably supported actuating` f spring connecter'. with the switch and movl able to opposite sidesof its pivotal supo e* the station from the distant transinitterlt w :is to more ii to tlicc punitions. mnnunllL7 initiated means i'ur so moving said spring, :i ack magnet electrically controlled from the transmitter of the: distant mation and provided with means fo!` preventing movementof said switch from its irst-named position while current is on lineito the station from Ltlv distant transmitter. and lock operated simultaneously -with the swtchfor retain- 

